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  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Nat类型测试</title>
    <link rel="stylesheet" href="./css/init.css" media="(max-height: 2em)" />
    <link rel="stylesheet" href="./css/color.css" />
  </head>
  <body>
    <p id="msg">
      正在测试...如果长时间无响应，请<a href="./cfg.html" target="cfgWindow"
        >点击这里配置STUN服务器</a
      >
    </p>
    <script src="./checker.js"></script>
  </body>
</html>
